# Relationship history for MSHA mine 1701100

Current hierarchy: **Ronald Paul  MacQuinn Jr → Harold MacQuinn Inc → 2023 READ SCREEN**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Ronald Paul  MacQuinn Jr → 2023 READ SCREEN; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Harold MacQuinn Inc → 2023 READ SCREEN; 2023-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald Paul  MacQuinn Jr → Harold MacQuinn Inc; 2023-07-31 to current/open; source msha-controller-operator-history